What is a gene?
a. a section of a protein that codes for dna
b. the alternate version of a trait
c. the visible trait in the f1 generation
d. a section of dna that codes for a specific trait
think its d but i'm not sure..

In order to clone adult animals, scientists typically begin with a(n)

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall